<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">当前城市</div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">{{this.currentCity}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">热门城市</div>
                <div class="button-list">
                    <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
                        <div class="button">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div class="area" v-for="(item,key) of cites" :key="key" :ref="key">
                <div class="title border-topbottom">{{key}}</div>
                <div class="item-list">
                    <div class="item border-bottom" 
                        v-for="innerItem of item" 
                        :key="innerItem.id"
                        @click="handleCityClick(innerItem.name)"
                    >
                    {{innerItem.name}}
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    import Bscroll from "better-scroll"
    import {mapState,mapMutations} from "vuex"

    export default{
        name:"CityList",
        props:{
            hot:Array,
            cites:Object,
            letter:String
        },
        computed:{
            ...mapState({
                currentCity:'city'
            })
        },
        mounted(){
            this.scroll=new Bscroll(this.$refs.wrapper);
        },
        watch:{
            letter(){
                if(this.letter){
                    const element=this.$refs[this.letter][0]
                    this.scroll.scrollToElement(element);
                }
            }
        },
        methods:{
            handleCityClick(city){
                // this.$store.commit("changeCity",city);
                this.changeCity(city);
                this.$router.push('/');
            },
            ...mapMutations(['changeCity'])
        }
    }

</script>

<style lang="stylus" scoped>
    @import "~styles/varibles.styl"
    

    .border-topbottom
        &:before
            border-color:#ccc
        &:after
            border-color:#ccc
    .border-bottom
        &:before
            border-color:#ccc
    .list
        overflow:hidden
        position:absolute
        top:1.58rem
        left:0
        right:0
        bottom:0
        .title
            height:.54rem
            line-height:.44rem
            background:#eee
            padding-left:.2rem
            font-size:.26rem
            color:#666
        .button-list
            overflow:hidden
            padding:.1rem .6rem .1rem .1rem
            .button-wrapper
                float:left
                width:33.33%
                .button
                    text-align:center;
                    margin:.1rem
                    border:.02rem solid #ccc
                    font-size:12px
                    padding:.1rem 0
                    border-radius:.06rem
        .item-list
            .item
                line-height:.76rem
                padding-left:.2rem
                font-size:12px





</style>